scala - Not able to lookup a custom dispatcher -

i using play 2.3.7 , need use actors inside controller. following code working fine

implicit val system = actorsystem() implicit val dispatcher = system.dispatcher val future = (io(http) ? get(url).withheaders(...).mapto[httpresponse] val result = await.results(future, duration.inf) 

now make following change conf/application.conf

play {   akka {     actor {       default-dispatcher {         type = dispatcher         executor = "thread-pool-executor"         thread-pool-executor {           fixed-pool-size = 128         }       }       foo-dispatcher {         type = dispatcher         executor = "thread-pool-executor"         thread-pool-executor {           fixed-pool-size = 128         }       }     }   } } 

and now, change code to

implicit val system = actorsystem() implicit val dispatcher = system.dispatchers.lookup("foo-dispatcher") val future = (io(http) ? get(url).withheaders(...).mapto[httpresponse] val result = await.results(future, duration.inf) 

i exception message [foo-dispatcher] not configured

reference full path:

implicit val dispatcher = system.dispatchers.lookup("play.akka.actor.foo-dispatcher") 

if want use system.dispatchers.lookup("foo-dispatcher"), define foo-dispatcher outside of play namespace:

play {   akka {     actor {       default-dispatcher {         type = dispatcher         executor = "thread-pool-executor"         thread-pool-executor {           fixed-pool-size = 128         }       }     }   } }  foo-dispatcher {   type = dispatcher   executor = "thread-pool-executor"   thread-pool-executor {     fixed-pool-size = 128   } }